Describe the bug
When exporting annotation with Flashcard, the JSON line is undefined

    },
    undefined,
    {

To Reproduce
Steps to reproduce the behavior:

1. Annotate a line of text
2. Add a Flashcard with data on back and front
3. Export annotation as JSON
4. Search "undefined" you should get to that badly exported entry

Expected behavior

Fla

From Cascading and Inheritance:

If a shorthand is specified as one of the CSS-wide keywords, it sets all of its sub-properties to that keyword […].

It should be probably handled by the expander decorator.

This is a very, VERY low priority thing...

Affects versions :

• OS: Linux
• 1.0.19 (and before)

Describe the bug
When setting the transparency on fills (which, by the way, should be better discoverable --- maybe a right click on the bucket tool?) you are asked to set "transparency", while really you set "opacity" (when put to 100% the result is solid fill, and 0% means totally t